E56.1 is the authoritative medical code for Deficiency of vitamin K. This classification is used in medical billing and clinical recording to specify the clinical criteria for deficiency of vitamin k (ICD-10-CM E56.1), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Sequencing, inclusion, and exclusion notes published for E56.1 in the official ICD-10-CM tabular list.
Conditions that can never be reported with this code; the two are mutually exclusive.
Conditions not covered by this code, but which may be reported alongside it when both are present.
Per Excludes1 instructions, E56.1 must not be reported with: deficiency of coagulation factor due to vitamin K deficiency (D68.4); vitamin K deficiency of newborn (P53); sequelae of other vitamin deficiencies (E64.8).
Per Excludes2 instructions, E56.1 and the following may both be reported when both are present: nutritional anemias (D50-D53).
Official ICD-10-CM classifications in the same code family as E56.1, with their registry titles.
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: